package com.ithema.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ithema.reggie.common.R;
import com.ithema.reggie.dto.DishDto;
import com.ithema.reggie.dto.SetmealDto;
import com.ithema.reggie.entity.Category;
import com.ithema.reggie.entity.Dish;
import com.ithema.reggie.entity.Setmeal;
import com.ithema.reggie.service.CategoryService;
import com.ithema.reggie.service.SetmealDishService;
import com.ithema.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@RestController
@RequestMapping("/setmeal")
public class SetmealController {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return
     */
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("套餐信息：{}",setmealDto);

        setmealService.saveWithDish(setmealDto);

        return R.success("新增套餐成功");
    }
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        //构造分页构造器对象
        Page<Setmeal> pageInfo=new Page<Setmeal>(page,pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();
        //条件构造器
        LambdaQueryWrapper<Setmeal> lambdaQueryWrapper=new LambdaQueryWrapper<>();
        //添加过滤条件
        lambdaQueryWrapper.like(name!=null,Setmeal::getName,name);
        //添加排序条件
        lambdaQueryWrapper.orderByDesc(Setmeal::getUpdateTime);

        //执行分页查询
        setmealService.page(pageInfo,lambdaQueryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,setmealDtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if(category != null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        setmealDtoPage.setRecords(list);
        return R.success(setmealDtoPage);
    }

    /**
     * 根据id查询套餐信息和对应的菜品信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> get(@PathVariable Long id){

        SetmealDto setmealDto = setmealService.getByIdWithFlavor(id);

        return R.success(setmealDto);
    }

    /**
     * 修改套餐  同时更新菜品对应的数据
     * @param setmealDto
     * @return
     */
    @PutMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> update(@RequestBody SetmealDto setmealDto){
        log.info(setmealDto.toString());

       setmealService.updateWithFlavor(setmealDto);
        return R.success("菜品修改成功");

    }

    /**
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids{}",ids);

        setmealService.removeWithDish(ids);
        return  R.success("套餐数据删除成功");
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId+'_' + #setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){     //加入了注解返回的对象需要序列化R
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);

        return R.success(list);
    }

}
